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Table 1 Characteristics of adult women by sexual partnering in the year before interview

From: Age at first intercourse and subsequent sexual partnering among adult women in the United States, a cross-sectional study

  Concurrent partnerships Serially monogamous partnerships Monogamous partnerships  
  1- 3 month gap between partners 4+ month gap between partners  
  n = 478 n = 220 n = 143 n = 5,950  
  Weighted n = 1,902,824 Weighted n = 903,503 Weighted n = 530,948 Weighted n = 33,101,3967 p-value*
  Weighted percentages (95% Confidence Intervals)  
Age at first intercourse      <.0001
  <15 years 25.3 (19.3-32.4) 20.8 (13.4-30.7) 9.1 (5.9-13.9) 10.9 (9.6-12.2)  
  15-17 years 50.1 (43.5-56.7) 41.7 (32.1-51.9) 53.4 (41.7-64.8) 46.3 (44.2-48.4)  
  18 + years 24.6 (19.5-30.4) 37.6 (27.7-48.6) 37.4 (26.7-49.6) 42.9 (40.3-45.5)  
Sociodemographic factors      
 Age at interview      <.0001
  21-24 years 30.2 (23.6-37.7) 39.0 (29.0-50.1) 25 (16.7-35.6) 13.7 (12.3-15.2)  
  25-29 years 30.6 (24.2-37.9) 36.3 (27.9-45.5) 33.2 (24.2-43.7) 20.9 (19.2-22.7)  
  30-34 years 15.1 (10.1-22.0) 10.2 (6.9-14.8) 9.6 (5.8-15.4) 20.0 (18.3-21.7)  
  35-39 years 11.5 (7.9-16.4) 8.6 (4.5-15.6) 17.1 (7.4-34.8) 22.8 (21.3-24.3)  
  40-44 years 12.5 (8.3-18.4) 6.0 (3.4-10.5) 15.1 (7.8-27.3) 22.7 (20.8-24.7)  
 Race/Ethnicity      <.0001
  White, non-Hispanic 63.0 (56.0-69.6) 60.8 (50.0-70.6) 57.1 (44.1-69.1) 64.6 (60.6-68.4)  
  Black, non-Hispanic 26.7 (21.0-33.3) 20.0 (13.2-29.1) 29.6 (19.4-42.3) 12.4 (10.3-14.8)  
  Hispanic 7.6 (4.8-11.6) 14.6 (8.1-24.8) 10 (5.6-17.5) 17.2 (13.9-21.0)  
  Other, non-Hispanic 2.7 (1.4-5.3) 4.6 (2.0-10.6) 3.3 (1.3-8.1) 5.8 (4.3-7.7)  
 Educational attainment      0.71
  Less than high school 14 (10.5-18.4) 11.4 (6.7-18.8) 9.1 (5.2-15.5) 13.6 (11.8-15.6)  
  High school graduate 25.4 (20.1-31.7) 24.7 (17.1-34.2) 21 (12.6-32.8) 24.8 (22.7-27.0)  
  At least some college 60.6 (53.1-67.6) 63.9 (53.5-73.1) 69.9 (57.9-79.7) 61.7 (58.8-64.5)  
 Marital status      <.0001
  Married or cohabitating 17.5 (12.1-24.5) 11.2 (6.0-19.9) 15.4 (8.7-25.7) 77.8 (75.7-79.7)  
  Formerly married 26.1 (20.5-32.6) 25.4 (17.8-34.9) 29 (18.6-42.2) 7.2 (6.3-8.3)  
  Never married 56.4 (48.8-63.8) 63.4 (53.7-72.1) 55.6 (43.6-67.0) 15 (13.3-16.8)  
 Income      0.004
  <100% federal poverty level 26.1 (20.5-32.7) 27.1 (19.2-36.9) 28.6 (18.0-42.1) 16.8 (14.9-18.8)  
  100-199% federal poverty level 23.5 (18.1-30.0) 26.7 (18.9-36.3) 19.0 (11.2-30.4) 22.7 (20.9-24.6)  
  ≥200% federal poverty level 50.4 (43.0-57.8) 46.2 (36.9-55.7) 52.4 (40.2-64.4) 60.6 (57.6-63.4)  
Childhood variables      
 Mother’s education      0.024
  Less than high school 17.8 (12.9-24.0) 16.5 (10.0-26.2) 12.4 (6.9-21.3) 23.6 (20.9-26.6)  
  High school graduate 34.3 (28.4-40.6) 28.3 (20.5-37.5) 35.3 (25.1-47.1) 35.0 (32.7-37.3)  
  Some college or associate’s degree 29.7 (23.6-36.7) 34.2 (25.3-44.3) 34.5 (23.3-47.8) 22.1 (20.4-23.9)  
  College graduate 18.2 (13.4-24.3) 21.0 (13.9-30.5) 17.8 (9.8-30.1) 19.3 (17.3-21.4)  
 Father’s education      0.0001
  Less than high school 16.9 (12.1-23.3) 15 (9.0-23.8) 8.0 (4.2-14.8) 23.2 (20.8-25.9)  
  High school graduate 35.5 (28.1-43.7) 26.1 (19.2-34.4) 29.6 (19.9-41.7) 30.5 (28.5-32.4)  
  Some college or associate’s degree 20.9 (15.5-27.6) 25.4 (17.2-35.8) 20.9 (13.9-30.3) 17.0 (15.4-18.7)  
  College graduate 16.8 (11.6-23.8) 24.0 (15.9-34.4) 30.6 (18.5-46.1) 22.6 (20.3-25.2)  
  No father figure present 9.8 (6.6-14.5) 9.5 (5.3-16.4) 10.8 (5.9-19.1) 6.7 (5.8-7.7)  
  1. *p-value from chi-square test.
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